For independent operation of each device,distributed manual operation and monitoring capacity weakness and other issues in air station of aircraft development companies, air station real-time detection, diagnosis, alarm and control scheme was proposed based on configuration of network and PLC technology. The overall structure of the hardware which cores were PC and PLC was studied, and the centralized monitoring and alarm software system development was completed based on the configuration of network.The communication protocol between PC and the air compressor controller was MODBUS protocol,data transfer rate was 19.2 kB/s; the communication mode between PC and PLC in control cabinet,the cooling water circulation PLC was MPI,data transfer rate was 57.6 kB/s. The two bus technologies were combined, so control hysteresis and the failure of remote monitoring were resolved, the stability and reliability of the monitoring system were improved.